515042772 has 48 divisors (see below), whose sum is σ = 1259556480. Its totient is φ = 163491328.

The previous prime is 515042753. The next prime is 515042809. The reversal of 515042772 is 277240515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60304 + ... + 68312.

It is an arithmetic number, because the mean of its divisors is an integer number (26240760).

Almost surely, 2^515042772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515042772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629778240).

515042772 is an abundant number, since it is smaller than the sum of its proper divisors (744513708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515042772 is a wasteful number, since it uses less digits than its factorization.

515042772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272 (or 8270 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 515042772 is about 22694.5537960102. The cubic root of 515042772 is about 801.5816480095.

The spelling of 515042772 in words is "five hundred fifteen million, forty-two thousand, seven hundred seventy-two".